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Ch. 10 control scatt
Question | Answer |
---|---|
Which would produce the most scattered radiation | A patient with a large abdomen |
What part of the collimator absorbs the edges of the x-ray beam | The lead shutter |
Which one of these types of filters is some ties shaped like a wedge | Compensatory filtration |
A decrease in the collimation field size as what effect on contrast | increase it |
An increase in filtration has what effect on density | Decrease it |
Which one of these can be used during radiography of a body part where there will be a lot of unabsorbed primary radiation on the film | Lead blocker |
Which would produce the most scattered radiation | A large area of radiation |
The main purpose of filtration is to | Decrease the patient's radiation dose |
Adding more filtration would have what effect on the average energy of the photons in the x-ray beam | Would increase the average energy |
Compression to reduce the production of scattered radiation can be used best on which one of these exams | Abdomen |
Which one of these would be best method for the radiographer to use to control scattered radiation | Reduce the area of radiation |
Which one of these act like a filter | The back of the cassette |
The purpose of compensatory filter is to | Make the density |
Decrease in the area of radiation at the patient's body has body has what effect on density | Decrease it |
The trough compensatory filter is used most often on | Chests |
Which one of these types of filtration is removable | Compensatory filtration |
If an AP thoracic spine is performed with a wedge compensatory filter, the thick end of the filter should be placed over the | Superior end of the spine |
The glass envelopes of the X-ray tube provides which type of filtration | Inherent |
The air-gap technique uses | A large SID and large OID |
Which one of these types of filtration is a result of the design of the x-ray tube | Inherent filtration |
An increase in filtration has what effect on contrast | Decrease it |
Which would best protect the patient's body from excess radiation | A small area of radiation |
Filtration absorbs more | Low energy photons |